ExpertGlossary terms starting with H

1,452 terms

  1. Hamming weight The number of non-zero symbols in a symbol sequence. Note: For binary signaling, Hamming weight is the number of "1" bits in the binary sequence.
  2. HAMS Hardness Assurance, Maintenance and Surveillance.
  3. Hand Behind this is the common term used for the five card hand as it is placed behind the smaller two card hand.
  4. Hand Geometry Recognition A biometric modality that uses the physical structure of an individual�s hand for recognition purposes.
  5. Hand in Front this is the common term used for the two card hand called this because it is placed first, or in front of the hand behind.
  6. Hand pile A pile of slash constructed by a crew, not by machine. Hand piles are typically less than 10´ high and less than 12´ in diameter.
  7. hand-foot syndrome A condition marked by pain, swelling, numbness, tingling, or redness of the hands or feet.
  8. handle An object that identifies an enterprise bean. A client can serialize the handle and then later deserialize it to obtain a reference to the enterprise bean.
  9. Handler A "subroutine" or "method" that is called by Perl when your program needs to respond to some internal event, such as a "signal", or an encounter with an…
  10. handline A fishing line used without a rod or reel; a line held in the hand.
  11. Handling Generally, a race car's performance while racing, qualifying or practicing. How a car "Handles" is determined by its tires, suspension geometry…
  12. handoff This occurs when information on positions, velocities and tracks are given by one sensor or system to another and the first sensor or system continues to…
  13. Handover This occurs when information is passed on to another sensor or system in which the first does not continue to track.
  14. handshaking In data communications, a sequence of events governed by hardware or software, requiring mutual agreement of the state of the operational modes prior to…
  15. handshaking procedures [The] dialogue between two information systems for synchronizing, identifying, and authenticating themselves to one another. [INFOSEC-99]
  16. Handy Line (Heaving line) Small line used to throw between barges, boat and/or shore, connected to a face line, in order to pull together.
  17. hang When a computer freezes waiting for an event that will never occur.
  18. hang-up Calling- or called-user placement of a telephone set or other unit of telecommunications equipment in the quiescent state. [T1.104-1988]
  19. hang-up signal An on-hook signal sent from an end office toward the disconnect-control office indicating either calling or called user hang-up and requesting the…
  20. Hanger A support for pipe.
  21. Hanging (ice) dam A mass of ice composed mainly of frazil or broken ice deposited underneath an ice cover in a region of low flow velocity.
  22. Hanging drop method A technique used to culture embryonic stem cells so that they develop into embryoid bodies.
  23. hanging droplet technique See: microdroplet array.
  24. hangover Synonym tailing.
  25. HAOI High Altitude Optical Imaging.
  26. HAOIS High Altitude Optical Imaging System.
  27. HAP High Altitude Probe.
  28. Haploid A cell or organism containing one of each of the pairs of homologous chromosomes found in the normal diploid cell.
  29. Haploid cell A cell containing only one set, or half the usual (diploid) number, of chromosomes.
  30. Haploid human cell A cell such as an egg or sperm that contains only twenty-three chromosomes.
  31. haploinsufficiency A situation in which the protein produced by a single copy of an otherwise normal gene is not sufficient to assure normal function. See also gene, protein
  32. Haplotype A specific allelic constitution at a number of loci within a defined linkage block.
  33. haplozygous See: hemizygous.
  34. Happy Hour the last practice session held before a NASCAR race.
  35. happy major A plant whose seeds and root have been used in some cultures to treat certain medical problems. It may have antioxidant effects.
  36. hapten A small molecule, which by itself is not an antigen, but which as a part of a larger structure when linked to a carrier protein, can serve as an antigenic…
  37. haptoglobin A serum protein that interacts with haemoglobin during recycling of the iron molecule of haemoglobin. Synonym: alpha globulin.
  38. Harassment The intentional or unintentional disturbance of individual animals causing them to flee a site or avoid use of an area.
  39. Hard assets Hard assets are the tangible property of a company or partnership, such as the buildings, furniture, real estate, and other equipment it owns.
  40. hard bottom Usually a type of bottom that you would not sink far, if at all, were you to walk on it and can consist of clay, gravel, rock or sand.
  41. hard copy Synonymous with paper
  42. Hard Disc Drive The primary storage unit on PCs, consisting of one or more magnetic media platters on which digital data can be written and erased magnetically.
  43. Hard disk A magnetic disk on which data can be stored.
  44. Hard Disk Storage (HDS) or Hard Drives (HD) the storage componet of Cloud computing requires that data be online for real-time access by remote users.
  45. Hard Drive The primary storage unit on PCs, consisting of one or more magnetic media platters on which digital data can be written and erased magnetically.
  46. Hard Drives The primary computer storage medium in desktop and laptop computers.
  47. Hard Hand Any hand without an ace. Also any hand with an ace where the ace must be counted as a 1 to avoid busting.
  48. Hard Kill (HK) Destruction of a target in such a way as to produce unambiguous visible evidence of its neutralization.
  49. hard limiting See limiting.
  50. hard palate (PAL-et) The front, bony part of the roof of the mouth.
  51. hard reference A "scalar" "value" containing the actual address of a "referent", such that the referent's "reference" count accounts for it.
  52. hard sectoring In magnetic or optical disk storage, sectoring that uses a physical mark on the disk, from which mark sector locations are referenced.
  53. Hard total The total of a hard hand.
  54. Hard water Water may be considered hard if it has a hardness greater than the typical hardness of water from the region.
  55. hard-copy key [A] physical keying material, such as printed key lists, punched or printed key tapes, or programmable, read-only memories (pROM). [INFOSEC-99]
  56. hard-drawn copper wire Copper wire that has not been annealed after being drawn.
  57. hardened Pertaining to the condition of a facility with protective features that enable it to withstand destructive forces, such as explosions, natural disasters…
  58. Hardening Design and manufacturing process and other measures, which may be employed to render military assets less vulnerable.
  59. hardening off Adapting glasshouse or controlled environment grown plants to outdoor conditions by reducing availability of water, lowering the temperature, increasing…
  60. HARDMAN Hardware/Military Manpower Integration (Navy ILS term).
  61. Hardness A characteristic of water determined by the levels of calcium and magnesium. Water hardness is largely the result of geological formations of the water…
  62. Hardpan A dense, often impermeable soil horizon cemented with silica, iron oxides, calcium carbonate, or organic matter.
  63. Hardship Exemption Under the Affordable Care Act, most people must pay a fee if they don't have health coverage that qualifies as "minimum essential coverage.
  64. Hardship withdrawal A hardship withdrawal, also known as a hardship distribution, occurs when you take money out of your 401(k) or other qualified retirement savings plan to…
  65. hardware The physical components of a computer system-the computer, plotters, printers, terminals, digitizers, and so on.
  66. hardware platform Synonym platform.
  67. Hardware Security Computer equipment features or devices used in an ADP system to preclude unauthorized access to data or system resources.
  68. hardware virtual machine See Full virtualization
  69. Hardware Virtual Machine (HVM) virtualization Lets the guest VM run as though it is on a native hardware platform, except that it still uses para-virtual (PV) network and storage drivers for improved…
  70. hardware virtualization This technology was the starting point of the virtualization movement. Originally, the x86-architecture did not support virtualization.
  71. Hardware Virtualization Assist See Virtualization Assist.
  72. hardware VPN A hardware-based IPsec VPN connection over the Internet.
  73. Hardware-in-the- Loop (HWIL) Tests in which BM/C 3 computer and communication test systems will be in communication with some of the hardware test facilities developed for other BMD…
  74. hardware-independence by virtualizing the underlying hardware that an operating system interacts with, and with the proper virtual machine monitor and hypervisor, the operating…
  75. Hardware-level virtualization See full virtualization.
  76. hardwire To connect equipment or components permanently in contrast to using switches, plugs, or connectors. 2.
  77. hardwired key [A] permanently installed key. [INFOSEC-99]
  78. hardwood One of the botanical groups of dicotyledonous trees that have broad leaves in contrast to the conifers or softwoods.
  79. Hardwoods Usually broad-leaved and deciduous trees.
  80. Hardy-Weinberg equilibrium The frequencies of genotypes at a locus resulting from random mating at that locus; for two alleles, A1 and A2, with respective frequencies in a…
  81. HARM High Speed Anti-Radiation Missile. 125
  82. harmful interference Any emission, radiation, or induction interference that endangers the functioning or seriously degrades, obstructs, or repeatedly interrupts a…
  83. Harmless error An error committed during a trial that was corrected or was not serious enough to affect the outcome of a trial and therefore was not sufficiently harmful…
  84. harmonic Of a sinusoidal wave, an integral multiple of the frequency of the wave. Note: The frequency of the sine wave is called the fundamental frequency or the…
  85. Harmonic balancer An element used to reduce vibrations in the crankshaft.
  86. harmonic distortion In the output signal of a device, distortion caused by the presence of frequencies that are not present in the input signal.
  87. Harmonic(s) A sinusoidal quantity having a frequency that is an integral multiple of the frequency of a periodic quantity to which it is related.
  88. Harmonization The proposed harmonizing of patent laws in different countries to produce essentially one, worldwide patent law.
  89. Harrow An agricultural tool that loosens and works the ground surface.
  90. Harvest In a recreational fishery, refers to numbers of fish that are caught and kept. See catch.
  91. Harvestable-sized fish A fish of a size normally kept by sport anglers. This size for bream is about 6 inches and larger and for largemouth bass it is about 10 inches and larger.
  92. Harvesting The process of retrieving or collecting electronic data from storage media or devices; an EDiscovery vendor harvests electronic data from computer hard…
  93. has-a relationship See aggregation.
  94. HASC House Armed Services Committee (US).
  95. Hash A mathematical algorithm that represents a unique value for a given set of data, similar to a digital fingerprint.
  96. hash code A value returned by a hash function. A hash code can be used as an index into a random-access data structure, providing an efficient mapping between an…
  97. Hash Coding To create a digital fingerprint that represents the binary content of a file unique to every electronically-generated document; assists in subsequently…
  98. Hash Function A function used to create a hash value from binary input. The hash is substantially smaller than the text itself, and is generated by the hash function in…
  99. hash table A data structure used internally by Perl for implementing associative arrays (hashes) efficiently. See also "bucket".
  100. hash total The result obtained by subjecting a set of data to an algorithm for purposes of checking the data at the time the algorithm is applied or for use at a…